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Region extraction apparatus, method and program

a technology of extraction apparatus and region, applied in image analysis, image enhancement, instruments, etc., can solve the problems of long processing time and higher risk of error detection, and achieve the effect of limiting the range of extraction processing and high-accuracy extraction processing

Active Publication Date: 2014-03-20
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

The present invention provides a region extraction apparatus, method and program that can extract a bronchial structure and divide it into lung regions accurately and quickly. It can generate a distance image based on the distance between each voxel in an entire region excluding the divided lung regions and borders. This allows the apparatus to exclude border non-existing regions and divided lung regions from the target region of processing for extracting interlobar fissures, borders of lung segments, and the like. Consequently, high-speed and highly-accuracy extraction processing becomes possible.

Problems solved by technology

Therefore, there are problems that the time period of extraction processing is long, and that the risk of error detection becomes higher.

Method used

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  • Region extraction apparatus, method and program
  • Region extraction apparatus, method and program
  • Region extraction apparatus, method and program

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first embodiment

[0054]Hereinafter, a medical image diagnosis support system using a region extraction apparatus, method and program of the present invention will be described in detail with reference to drawings. FIG. 1 is a schematic block diagram illustrating the configuration of a medical image diagnosis support system according to an embodiment of the present invention. The medical image diagnosis support system according to the embodiment of the present invention extracts a lung region from a three-dimensional medical image of the chest of a subject (patient) to be examined. The medical image diagnosis support system extracts interlobar fissures, as illustrated in FIG. 2, from the lung region at high accuracy and at high speed, and displays the extracted interlobar fissures.

[0055]The medical image diagnosis support system according to an embodiment of the present invention includes a medical image display apparatus 1, a three-dimensional medical image storage server 2, a display 3, and an inpu...

second embodiment

[0108]Specifically, as illustrated in FIG. 11, first, the distance image generation unit 13 leaves only right upper lobe region RA of the three lung lobe regions in entire region R of the right lung. Further, the distance image generation unit 13 calculates distance DA between each voxel P in the entire region R excluding the right upper lobe region RA and the right upper lobe region RA. Further, the distance image generation unit 13 generates distance image A′, as one of third distance images, by assigning the value of the distance DA to each voxel P.

[0109]Then, as illustrated in FIG. 12, the distance image generation unit 13 leaves only right middle lobe region RB of the three lung lobe regions in entire region R of the right lung. The distance image generation unit 13 calculates distance DB between each voxel P in the entire region R excluding the right middle lobe region RB and the right middle lobe region RB. Further, the distance image generation unit 13 generates distance im...

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Abstract

A three-dimensional medical image obtainment unit that obtains a three-dimensional medical image of a chest, a bronchial structure extraction unit that extracts a bronchial structure from the three-dimensional medical image, a divided lung region obtainment unit that divides, based on the divergence of the bronchial structure, the bronchial structure into plural bronchial structures, and obtains plural divided lung regions based on the plural divided bronchial structures, a distance image generation unit that generates, based on the plural divided lung regions, a distance image based on a distance between each voxel in an entire region excluding at least one of the plural divided lung regions and each of the plural divided lung regions, and a border non-existing region extraction unit that extracts, based on the distance image generated by the distance image generation unit, a border non-existing region, which does not include any borders of the divided lung regions, are provided.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a region extraction apparatus, method and program for extracting a region, such as a lung lobe, from a three-dimensional medical image of a chest. In particular, the present invention relates to a region extraction apparatus, method and program for extracting a border of the region, such as a lung lobe.[0003]2. Description of the Related Art[0004]In a surgery of a lung cancer or the like, it is important to recognize interlobar fissures, which are present between lung lobe regions, and borders of lung segments to conserve pulmonary functions after the surgery and to maintain cardiopulmonary functions.[0005]Conventionally, such information about interlobar fissures and borders of lung segments was displayed, for example, by directly inputting the information by a manual operation, or by obtaining interlobar fissures by manual input of each lung lobe region.[0006]Meanwhile, as image recogn...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T7/0083G06T2207/10081G06T2207/10088G06T2207/20021G06T2207/30061G06T2207/30064G06T7/12
Inventor INOUE, TSUTOMU
Owner FUJIFILM CORP
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